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Tpy6a [65]
3 years ago
11

The sum of two numbers is 88. The difference of those same two numbers is 60. Which answer choice

Mathematics
1 answer:
Fed [463]3 years ago
8 0

Step-by-step explanation:

Let the 2 numbers be X and Y

X+Y=88

X-Y=60

______

2X. = 148. X=74

Put the value of X to find Y

74+Y=88

74-Y = 60 :. Y = 14

=>X=74

=>Y=14

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having trouble with this problem, pls help :/ I know the answer, just not how to get there. (ap calc ab, integrals)
pochemuha

Answer: D) 101

Step-by-step explanation:

By linearity, we can break it up into 2 integrals. The integral and derivative of f easily cancel out

\int\limits^{10}_{-1} {(2x+0.5f'(x))} \, dx =\int\limits^{10}_{-1} {2x} \, dx +0.5\int\limits^{10}_{-1} {f'(x)} \, dx =x^2|^{^{10}}_{_{-1}}+0.5f(x)|^{^{10}}_{_{-1}}\\=(100-1)+0.5(f(10)-f(-1))=99+0.5(8-4))=101

I used the table for values of f(x) at 10 and -1. Wouldn't be surprised if this was part of a series of questions about f because I really can't see how you could use the hypothesis that f is twice differentiable on R. Same for the other table values. I'm curious about how you found the answer. Was it a different way?

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3 years ago
Pls help will give brainilist
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Answer:

3. 26 problems left

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Step-by-step explanation:

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2. It said that Luke paid 2.75 for himself and 6 other friends, which is 7 people. I then multiplied 2.75 x 7 and got 19.25. I then added 19.25 to the other amount of money, and got 69.20.

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What inequality is shown here
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Greater than or equal to.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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